The Relationship Between Water Quality and Phytoplankton Abundance at The Eastern Part of Segara Anakan Cilacap, Central Java

Phytoplankton is the primary producer whose existence depends not only on the nutrient. The eastern part of Segara Anakan waters experienced changes where the decline in quality which received input from organic and inorganic wastes and residential, industrial and factory wastes of Holcim and Pertamina factories. The purpose of this research is to study the water quality and to study the relationship between water quality and abundance of phytoplankton at the eastern part of Segara Anakan. The result showed that Water quality in Segara Anakan waters in the eastern part of Cilacap consists of several parameters that beyond the quality standards according to the Keputusan Menteri Lingkungan Hidup No. 51 of 2004 such as pH, Nitrate, Ammonia, Phosphate, and TSS. Water temperature is a physical factor which has a strong negative correlation with the abundance of phytoplankton, followed by TSS as a physical factor which has a positive correlation. The chemical factor which has a positive correlation with abundance are TDS, Nitrite and pH, followed by Phosphate, Salinity, Ammonia, and Nitrate which has a negative correlation with the abundance of phytoplankton. Key Words: Environmental factor, phytoplankton, Segara Anakan, Spatial variation, temporal variation.

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Spatial Variation of the Relationship between PM2.5Concentrations and Meteorological Parameters in China

BioMed Research International ◽

10.1155/2015/684618 ◽

2015 ◽

Vol 2015 ◽

pp. 1-15 ◽

Cited By ~ 10

Author(s):

Gang Lin ◽

Jingying Fu ◽

Dong Jiang ◽

Jianhua Wang ◽

Qiao Wang ◽

...

Keyword(s):

Negative Correlation ◽

Meteorological Parameters ◽

Semiarid Region ◽

Strong Positive Correlation ◽

Annual Average ◽

Strong Negative Correlation ◽

Positive Correlation ◽

Humid Region ◽

The Relationship ◽

Warm Temperate

Epidemiological studies around the world have reported that fine particulate matter (PM2.5) is closely associated with human health. The distribution of PM2.5concentrations is influenced by multiple geographic and socioeconomic factors. Using a remote-sensing-derived PM2.5dataset, this paper explores the relationship between PM2.5concentrations and meteorological parameters and their spatial variance in China for the period 2001–2010. The spatial variations of the relationships between the annual average PM2.5, the annual average precipitation (AAP), and the annual average temperature (AAT) were evaluated using the Geographically Weighted Regression (GWR) model. The results indicated that PM2.5had a strong and stable correlation with meteorological parameters. In particular, PM2.5had a negative correlation with precipitation and a positive correlation with temperature. In addition, the relationship between the variables changed over space, and the strong negative correlation between PM2.5and the AAP mainly appeared in the warm temperate semihumid region and northern subtropical humid region in 2001 and 2010, with some localized differences. The strong positive correlation between the PM2.5and the AAT mainly occurred in the mid-temperate semiarid region, the humid, semihumid, and semiarid warm temperate regions, and the northern subtropical humid region in 2001 and 2010.

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Determination of the correlation relationship between irrigation and distribution of agricultural lands

NATURE AND SCIENCE ◽

10.36719/2707-1146/07/29-35 ◽

2021 ◽

Vol 07 (02) ◽

pp. 29-35

Author(s):

Kamil Zakir oğlu İbrahimli ◽

Keyword(s):

Key Words ◽

Statistical Method ◽

Negative Correlation ◽

Agricultural Lands ◽

Correlation Relationship ◽

Positive Correlation ◽

Correlation Methods ◽

Correlation Degree ◽

The Relationship

The importance of the statistical method is great in the study of natural and economic processes. It is possible to conduct analyzes and obtain results with the help of this method. Sometimes phenomena and processes co-exist and develop interdependently. In this case, it is necessary to determine the relationship between them, to express this relationship. Key words: perfect positive correlation, perfect negative correlation, direction of correlation, degree of correlation, methods of calculating correlation, Spearman᾽s method

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The effects of cardiac rehabilitation on haemodynamic parameters measured by impedance cardiography in patients with coronary artery disease

Vojnosanitetski pregled ◽

10.2298/vsp200810126s ◽

2020 ◽

pp. 126-126

Author(s):

Milovan Stojanovic ◽

Marina Deljanin-Ilic ◽

Stevan Ilic ◽

Dejan Petrovic ◽

Bojan Ilic

Keyword(s):

Coronary Artery Disease ◽

Negative Correlation ◽

Impedance Cardiography ◽

Exercise Stress ◽

Strong Positive Correlation ◽

Physical Strain ◽

Strong Negative Correlation ◽

Positive Correlation ◽

Strain Tolerance ◽

Artery Disease

Background / Aim. Well-organized cardiovascular rehabilitation (CVR) reduces cardiovascular burden by influencing cardiovascular risk factors, improving the quality of life and reducing mortality and hospital readmission. However, its effects on hemodynamic status are largely unknown. The aim of our study was to evaluate the influence of three-week CVR program on hemodynamic status and to investigate if there is a correlation between physical strain tolerance and hemodynamic parameters measured by impedance cardiography (ICG) before and after CVR program in patients with coronary artery disease. Methods. Fifty-two patients attended a three-week CVR program. At the beginning and at the end of rehabilitation program laboratory tests, exercise stress tests (EST) and ICG measurements were taken. Results. Patients showed better strain tolerance on the second exercise stress test (EST2) by achieving higher strain level (Z=2,315; p=0,021) and longer duration of test (Z=2,305; p=0,021). There was a strong positive correlation between the level of EST2 and cardiac output (CO) (r=0,538; p<0,001) and stroke volume (SV) (r=0,380; p=0,017) on the second ICG (ICG2). Also, there was a strong negative correlation between EST2 level and systemic vascular resistance (SVR) (r=-0,472; p=0,002) and SVR index (SSVRI) (r=-0,407; p=0,010) on ICG2. There was a strong positive correlation between EST2 duration and CO (r=0.517; p=0.001) as well as between EST2 duration and SV (r=0.340; p=0.034), and a strong negative correlation between EST2 duration and SVR (r=-0.504; p=0.001) as well as between EST2 duration and SVRI (r=-0.448; p=0.004), according to ICG2. Conclusion. Our study showed that a well-designed CVR program can lead to better physical strain tolerance. Furthermore, CVR led to a significant positive correlation between EST and cardiac output as well as between EST and stroke volume measured by ICG. On the other hand, there was a significant negative correlation between EST and vascular related parameters according to ICG at the end of the CVR program.

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The Relationship between Resilience and Mental Health: the Mediating Effect of Positive Emotions

Applied Science and Innovative Research ◽

10.22158/asir.v2n3p87 ◽

2018 ◽

Vol 2 (3) ◽

pp. 87

Author(s):

Zhun Gong ◽

Lichao Yu ◽

Jonathan W Schooler

Keyword(s):

Mental Health ◽

Negative Correlation ◽

Psychological Health ◽

Positive Emotions ◽

Mediating Effect ◽

Depression And Anxiety ◽

Cross Sectional ◽

Positive Correlation ◽

Relationship Of ◽

The Relationship

To investigate the relationship of resilience, positive emotions and mental health, and the relationship of resilience, positive emotion and three sub-dimensions of mental health: self-affirmation, depression and anxiety. In this study, the existing cross-sectional data, select the Beijing Forestry University data as samples. In this study, questionnaire survey a random sample of 199 undergraduate students of Beijing Forestry University, they uniform application three Scale Surveying, PANAS, CD-RISC, GHQ-20. According from the study, (1) resilience, positive mood and general health are related where resilience and positive emotions between the resilience. General psychological health, positive emotions and general mental health?it is positively correlated. (2) Resilience and self-affirmation exists, positive correlation with depression and anxiety, respectively negative correlation. Between positive emotions and self-affirmation the positive correlation with anxiety negative correlation. (3) Part mediating effect of positive emotions exist between resilience and self-affirmation, resilience can be made to self-affirmation prediction coefficient from 0.042 down to 0.036. Therefore, this study concluded that resilience undergraduates can have an impact on mental health through the intermediary variable positive emotions.

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Distribution and Abundance of a New Pest “Root and Bulb Parasitic Nematode” at Different Elevation Levels and Soil Abiotic Factors in Garlic Growing Centres in Central Java

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.840.124 ◽

2020 ◽

Vol 840 ◽

pp. 124-130

Author(s):

Ayu Suci Wulandari ◽

Siwi Indarti

Keyword(s):

Negative Correlation ◽

Parasitic Nematode ◽

Abiotic Factors ◽

Nematode Population ◽

Positive Correlation ◽

Central Java ◽

Production Area ◽

Different Populations ◽

Ditylenchus Dipsaci ◽

New Pest

The distribution of root and bulb parasitic nematode in garlic crops at various elevation and the effect of abiotic factors on their distribution were investigated. The survey was done at the centers of garlic production area in Central Java, Indonesia. Soil abiotic factors such as temperature, pH, and C-Organic were measured in each location of sampling. Nematodes were analyzed using incubation and white head tray technique modification. Correlation and regression were used to determine the effect of abiotic factors. The results showed that the five locations with different elevations were positive for Ditylenchus dipsaci distribution. These nematodes were found in various elevation with different populations in the range of 8.00-16.67 nematodes per 100 g of soil and 14.34 to 26.67 nematodes per 2 g of bulb. The highest density of the nematode population both in bulb and soil was in Tegal at elevation <1000 m a.s.l. while the lowest nematode population both in soil and root were found in Temanggung at an elevation of 1000-1200 m a.s.l. Abiotic factors, such as temperature has a positive correlation with D.dipsaci nematode populations in bulb and soil, while pH has a negative correlation with nematode populations. C-organic has a positive correlation in abundance of nematode populations in the soil and negative in abundance of nematode populations in bulb.

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Factors driving temporospatial heterogeneity of fish community health in Jinan City, China

Marine and Freshwater Research ◽

10.1071/mf18337 ◽

2019 ◽

Vol 70 (5) ◽

pp. 637 ◽

Cited By ~ 2

Author(s):

C. S. Zhao ◽

Y. Yang ◽

S. Yang ◽

Y. Gai ◽

C. Zhang ◽

...

Keyword(s):

Water Quality ◽

Fish Community ◽

Oxygen Demand ◽

Physical Factor ◽

Field Trips ◽

Driving Factors ◽

Chemical Factor ◽

River Health ◽

Jinan City ◽

Fish Survival

Jinan City is the first pilot city for the construction of a hydroecological civilisation in China. Fifty-eight representative river sampling stations were selected through field trips and surveys, and fish were sampled in the spring, summer, and autumn of 2015. An index of fish biological integrity in Jinan City was constructed and to evaluate the hydroecological health of rivers. Canonical correlation analysis was used to select key driving factors that affect the health of the fish community. The results show that the key physical factor affecting water quality was turbidity, the key chemical factor affecting water quality was chemical oxygen demand (COD) and the key hydrological factor affecting water quality was discharge. Of all the driving factors, COD had the greatest effect on the health of the fish community, followed by discharge and turbidity. Macropodus chinensis Bloch was sensitive to changes in COD; Saurogobio dumerili Bleeker and Pseudolaubuca engraulis Nichols were sensitive to the hydrological factors of discharge and flow velocity; and Saurogobio gymnocheilus Lo and Squaliobarbus ourriculus Richardson were sensitive only to discharge. COD and discharge had a strong effect on fish survival, whereas turbidity affected fish survival but was not a major factor affecting the spatial distribution of river health. The findings can provide a reference for aquatic ecological rehabilitation in developing countries.

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Meteorological parameter anomalies and anomalous radio propagation over Nigeria

Nigeria Journal of Pure and Applied Physics ◽

10.4314/njpap.v9i1.7 ◽

2020 ◽

Vol 9 (1) ◽

pp. 34-50

Author(s):

I. Emmanuel ◽

K.D. Adedayo ◽

B. Adeyemi ◽

O.S. Ojo

Keyword(s):

Spatial Distribution ◽

Relative Humidity ◽

Negative Correlation ◽

Meteorological Parameter ◽

Radio Propagation ◽

Monthly Variation ◽

Wet Season ◽

Strong Negative Correlation ◽

Positive Correlation ◽

Seasonal Movement

Distribution and variation of anomalous radio propagation, temperature and relative humidity anomalies were obtained and analyzed using six years (2010-2015) Era interim data. Seasonal spatial distribution of refractivity gradient and its components were analyzed. The result showed that about 90% of wet component contributed to the variation of refractivity gradient. Highest range of refractivity gradients and its wet components were obtained during the wet season. The result of correlation between ducting occurrence and temperature showed strong negative correlation except in Lagos where positive correlation of 3% was observed. However, positive correlation which ranges between 39% and 70% exist between duct occurrence and relative humidity except in Lagos in Nigeria. Refractivity gradients, relative humidity anomaly and temperature experience a monthly variation. These variations can be attributed to the seasonal movement of inter-tropical discontinuity (ITD) across Nigeria. Keywords: anomalous, anomaly, correlation, ITD

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Relationship Between Sperm Quality and Male Reproductive Hormones Among Male Partners with Fertility Complications: Attending CHUB

Rwanda Journal of Medicine and Health Sciences ◽

10.4314/rjmhs.v3i3.4 ◽

2020 ◽

Vol 3 (3) ◽

pp. 315-328

Author(s):

Herbert Mapira Tendayi ◽

Jerome Ndayisenga ◽

Solange Nyiramahirwe ◽

Jacqueline Mukanshuti ◽

Valens Karenzi ◽

...

Keyword(s):

Sperm Motility ◽

Negative Correlation ◽

Sperm Quality ◽

Sperm Count ◽

Reproductive Hormones ◽

Strong Positive Correlation ◽

Male Partners ◽

Strong Negative Correlation ◽

Cross Sectional ◽

Positive Correlation

Background Infertility remains a highly prevalent global condition in the second decade of the new millennium. Reproductive hormones determine sperm quality as they initiate and maintain spermatogenesis. Hormonal imbalance can cause abnormal sperm quality that can be treated by hormonal replacement therapy. Objective To assess the relationship between sperm quality and male reproductive hormones among male partners with fertility complications attending CHUB. Methods The study was a descriptive cross-sectional, and a convenient sampling strategy was used to recruit subjects at CHUB. Sixty-two male subjects with fertility complications provided both semen and blood sample to analyze sperm quality and reproductive hormones. Descriptive statistics were used to analyze data. Results Both FSH and LH showed a strong negative correlation with sperm count which is more profound with FSH (r= -0.722) than LH (r= -0.545). Testosterone showed a strong positive correlation with sperm count (r= 0.712). FSH and LH showed a negative correlation with sperm motility which is more profound in FSH (r= -0.312) than LH (r= -0.302). Testosterone also showed a positive correlation with sperm motility (r= 0.360). Conclusion Our study found a correlation between sperm quality and male reproductive hormones. We further suggest other studies to investigate predictive power of male reproductive hormones. Rwanda J Med Health Sci 2020;3(3):315-328

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Association between Serum Ferritin and Blood Lipids: Influence of Diabetes and hs-CRP Levels

Journal of Diabetes Research ◽

10.1155/2020/4138696 ◽

2020 ◽

Vol 2020 ◽

pp. 1-12 ◽

Cited By ~ 1

Author(s):

Lianlong Yu ◽

Jingyi Yan ◽

Qian Zhang ◽

Hong Lin ◽

Lichao Zhu ◽

...

Keyword(s):

Linear Model ◽

Serum Ferritin ◽

Negative Correlation ◽

Generalized Linear Model ◽

Blood Lipids ◽

Real Relationship ◽

Positive Correlation ◽

Hs Crp ◽

Parsimonious Model ◽

The Relationship

This study is aimed at exploring the relationship between serum ferritin and blood lipids and the influence of diabetes and different hs-CRP levels. A total of 8163 subjects were analyzed. Participators were classified according to serum ferritin, diabetes, and two hs-CRP levels. Blood lipids were determined using standardized methods and conditions. Except for HDL-C, there was a significant increase in blood lipids in the progressive ferritin group with normal hs-CRP levels (P<0.05). But HDL-C was just the opposite (P<0.0001). In nondiabetic patients, TG, TC, and LDL-C were significantly elevated in the progressive ferritin group (P<0.05). And, HDL-C was just the opposite (P<0.05). The generalized linear model and the parsimonious model showed that serum TG was positively correlated with ferritin, and LDL-C was negatively correlated with ferritin (P<0.05). But the correlation between LDL-C and ferritin was broken (P>0.05). After a sufficient adjustment, there was a positive correlation between serum TG and ferritin and a negative correlation between LDL-C and ferritin. Nonetheless, a negative correlation between LDL-C and ferritin is influenced by diabetes frailly. And, there was no change of relationship between lipids and ferritin in different hs-CRP levels. We found a real relationship between ferritin and lipids after sufficient adjustment for confounders.

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An examination of jump kinematics in dogs over increasing hurdle heights

Comparative Exercise Physiology ◽

10.3920/cep150037 ◽

2016 ◽

Vol 12 (2) ◽

pp. 91-98 ◽

Cited By ~ 4

Author(s):

E. Birch ◽

A. Carter ◽

J. Boyd

Keyword(s):

Lumbar Spine ◽

Negative Correlation ◽

Maximum Height ◽

Strong Positive Correlation ◽

Kinematic Parameters ◽

Strong Negative Correlation ◽

Positive Correlation ◽

Sports Science ◽

Dorsal Aspect ◽

Dorsal Extension

Research examining kinematic parameters of the canine athlete is markedly behind equivalent human and equine research. With increasing participation and popularity, canine sports science needs to bridge this gap with comparable equine research. The aim of this study was to examine changes to specific kinematic parameters as hurdle height increases. Twenty border collies and border collie crosses were analysed jumping over a single hurdle at increasing heights, starting with a pole on the floor and increasing to a maximum height of 65 cm. Length of trajectory and jump speed were analysed, alongside apparent (without the use of markers) neck, lumbar spine and shoulder angles using Dartfish software. For each dog, the percentage of the hurdle height in relation to their height at the dorsal aspect of the scapula (withers) was used to normalise the dogs evenly. Overall jump speed decreased as percentage height increased (P<0.001), with a strong negative correlation between the two (r=-0.815). Length of trajectory significantly increased with percentage height (P<0.001) with a strong positive correlation between the two (r=0.740). However, length of trajectory decreased when a dog jumped ≥126% of its height to the withers. This is supported by a significantly more flexed apparent neck angle upon landing at this percentage height (P<0.001). Apparent lumbar spine angles showed greater dorsal extension upon landing as percentage height increased (P<0.001). Apparent shoulder angles become significantly more flexed as percentage height increased during the suspension phase of the jump (P<0.001). These results suggest that dogs significantly alter their jump kinematics as hurdle height increases.

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